pvanal: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/pvanal - from package: csound-utils

You may install the required package with command apt-get install {package}

Error in other languages:
pvanal: bevel nie gevind nie
pvanal: comandă negăsită
pvanal: comando não encontrado
pvanal: commande introuvable
pvanal: command not found
pvanal: käsku ei ole
pvanal: không tìm thấy lệnh
pvanal: komanda nerasta
pvanal: Kommando nicht gefunden.
pvanal: kommandot finns inte
pvanal: komut yok
pvanal: nie znaleziono polecenia
pvanal: níor aimsíodh an t-ordú
pvanal: no se encontró la orden
pvanal: no s'ha trobat l'ordre
pvanal: opdracht niet gevonden
pvanal: parancs nem található
pvanal: perintah tidak ditemukan
pvanal: príkaz nenájdený
pvanal: příkaz nenalezen
pvanal: команда не найдена
pvanal: командата не е открита
pvanal: 命令找不到
pvanal: コマンドが見つかりません